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avformat/stldec: Fix memleak upon read header failure 

The already parsed subtitles (contained in an FFDemuxSubtitlesQueue)
would leak if an error happened upon reading a subsequent subtitle.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
(cherry picked from commit e13874b9ea)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-06-14 03:24:23 +02:00
parent fae6d7c5a8
commit 11f041c6c8
1 changed files with 3 additions and 1 deletions
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4
libavformat/stldec.c
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@ -97,8 +97,10 @@ static int stl_read_header(AVFormatContext *s)
if (pts_start != AV_NOPTS_VALUE) { if (pts_start != AV_NOPTS_VALUE) {
AVPacket *sub; AVPacket *sub;
sub = ff_subtitles_queue_insert(&stl->q, p, strlen(p), 0); sub = ff_subtitles_queue_insert(&stl->q, p, strlen(p), 0);
if (!sub) if (!sub) {
ff_subtitles_queue_clean(&stl->q);
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
}
sub->pos = pos; sub->pos = pos;
sub->pts = pts_start; sub->pts = pts_start;
sub->duration = duration; sub->duration = duration;